نتایج جستجو برای: inversion tillage

تعداد نتایج: 50577  

2017
R. L. Newell

The effects of conservation-tillage practices on the root environment of corn (Zea mays L.) may differ with varying amounts of irrigation. Dryland, 50% irrigation, and 100% irrigation treatments were applied in combination with disc, no-tillage, and a postemergence chisel treatment designed to allow rapid infiltration of irrigation water. The study was conducted during the 1980 growing season a...

2011
M. HUANG MD. IBRAHIM B. XIA Y. ZOU

Simplified cultivation technologies for rice have become increasingly attractive in recent years in China because of their social, economical and environmental benefits. To date, several simplified cultivation technologies, such as conventional tillage and seedling throwing (CTST), conventional tillage and direct seeding (CTDS), no-tillage and seedling throwing (NTST), no-tillage and direct see...

Journal: :علوم گیاهان زراعی ایران 0
حمیدرضا چقازردی دانشجوی دکتری رشتة اکولوژی گیاهان زراعی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محدرضا جهانسوز استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علی احمدی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج منوچهر گرجی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

to study the effects of different tillage systems on yield and some characteristic of wheat and also some soil properties in wheat dry land area, six experiments were performed in cold, moderate and semi-warm climatic conditions of kermanshah province in west of iran, in a randomized complete block design with five replications. experimental treatments were consisted of no-tillage, reduced till...

Journal: :Applied and environmental microbiology 2010
Javier A Ceja-Navarro Flor N Rivera-Orduña Leonardo Patiño-Zúñiga Antón Vila-Sanjurjo José Crossa Bram Govaerts Luc Dendooven

Bacterial communities are important not only in the cycling of organic compounds but also in maintaining ecosystems. Specific bacterial groups can be affected as a result of changes in environmental conditions caused by human activities, such as agricultural practices. The aim of this study was to analyze the effects of different forms of tillage and residue management on soil bacterial communi...

2001
Stewart B. Wuest

Dryland farming in the Mediterranean climate of the Pacific Northwest, USA supports extremely low earthworm populations under conventional tillage. Increases in earthworm populations are being observed in fields under no-till cropping systems. A 30+ year experiment with four tillage levels in a pea (Pisum sativum L.)-winter wheat (Triticum aestivum L.) rotation was evaluated for earthworm popul...

2006
T. HERRMAN

consequence in the plots each year, and no supplemental inoculum of P. herABSTRACT Herrman, T., and Wiese, M. V. 1985. Influence of cultural practices on incidence of foot rot in potrichoides was added. winter wheat. Plant Disease 69:948-950. The three preplant tillage systems evaluated in this study were 1) conCrop rotation, preplant tillage, cultivar selection, nitrogen fertilization, and ben...

Journal: :به زراعی کشاورزی 0
حمیدرضا چقازردی دانشجوی سابق دکتری گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران محمدرضا جهانسوز استاد گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران علی احمدی استاد گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران منوچهر گرجی دانشیار گروه خاکشناسی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

in order to study of no-tillage, reduced tillage and conventional tillage systems on some soil physical properties, yield and some traits of wheat and chickpea, experiments were perfumed across two years in sarpolezahab’s dryland region.results of combined analysis of variance indicated that different tillage systems had significant effects (p≥0.01) on seed yield, volumetric soil moisture, bulk...

2013
Prabhakar Pathak Suhas P. Wani Raghavendra Sudi Nagaraju Budama

In the semi-arid tropics (SAT), 33% areas are occupied by Alfisols and related soils. In SAT these soils have low structural stability and thereby tend to form seal and crusts at the surface. Due to this a large proportion of the rain that falls on Alfisols during the early part of the rainy season, is normally lost as runoff thus causing high soil loss as well as moisture stress to crops. Two ...

Journal: :Journal of environmental quality 2008
T Roberson K C Reddy S S Reddy E Z Nyakatawa R L Raper D W Reeves J Lemunyon

Increased CO2 release from soils resulting from agricultural practices such as tillage has generated concerns about contributions to global warming. Maintaining current levels of soil C and/or sequestering additional C in soils are important mechanisms to reduce CO2 in the atmosphere through production agriculture. We conducted a study in northern Alabama from 2003 to 2006 to measure CO2 efflux...

2012
Jorge Álvaro-Fuentes Francisco Joaquín Morell Daniel Plaza-Bonilla José Luis Carlos Cantero-Martínez

1 Agricultural management plays an important role in global warming mitigation due to 2 its effects on soil organic carbon (SOC) dynamics. In Mediterranean agroecosystems, 3 the interactive effects of tillage and N fertilization on SOC storage have scarcely been 4 studied. Hence, we here present a modelling study in which the effects of both tillage 5 and N fertilization on SOC dynamics are inv...

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